Consider the following statement for a 2-port network

1. Z11 =Z22

2. h12 = h21

3.Y12 = -Y21

4.BC - AD = -1

then the network is reciprocal if and only if

(A) 1 and 2 are correct (B) 2 and 3 are correct (C) 3 and 4 are correct (D) 4 alone is correct.

1. Z11 =Z22

2. h12 = h21

3.Y12 = -Y21

4.BC - AD = -1

then the network is reciprocal if and only if

(A) 1 and 2 are correct (B) 2 and 3 are correct (C) 3 and 4 are correct (D) 4 alone is correct.